Ultrasonic Dead Zones in Thin Transformer Tank Welds
A thin tank seam may place near-surface and b…
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Bibliothèque technique
Articles techniques pratiques sur la sélection, la conception et la fabrication des noyaux de transformateurs.
1,317 articles
Magnetic-Particle Testing of Transformer Tank Attachment Welds
One magnetization direction can miss a differ…
Lire l’article completRadiator Header Welds: Inspect Before Access Closes
Final inspection can have less access than an…
Lire l’article completWelding Thin Corrugated Transformer Panels to Heavy Frames
The thin sheet and heavy frame can impose com…
Lire l’article completBack-Gouged Transformer Tank Welds: Inspect the Exposed Root
The back-gouged surface is an inspection oppo…
Lire l’article completTransformer Tank Corner Welds: Detect Lack of Fusion
A corner geometry can hide the fusion boundar…
Lire l’article completTransformer Tank Weld Porosity: Does It Form a Leak Path?
A weld pore needs connectivity to create a th…
Lire l’article completTransformer Tank Weld Qualification: Cover Each Oil-Retaining Joint
Structural weld qualification and oil tightne…
Lire l’article completTransformer Tank Salt-Spray Tests Do Not Predict Service Life
A salt-spray duration is a test exposure, not…
Lire l’article completTrace Transformer Tank Coating to Its Serial Number
A batch record is useful when it identifies w…
Lire l’article completTransformer Cooling Fins: Keep Painted Air Passages Open
A coating defect can change an air passage as…
Lire l’article completPaint Repair on Oil-Contaminated Transformer Tank Steel
A clean-looking surface can become oily again…
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